Neoarctinae from de Zio Grimaldi et al. 1992: “Stygarctidae with three pairs of clavae. Body covered by five plates: a cephalic plate, a scapular plate, (segmental plate I) which bears two long cirrophori with the first clavae and lateral cirri, two other plates (segmental plates II and III), and the caudal plate (plate IV).”
Elevated to family level by Bello & Grimaldi de Zio 1998.
Neoarctidae from Bello & Grimaldi di Zio 1998 in Fontoura et al. 2017: “Arthrotardigrada with a complete set of cephalic cirri and three pairs of clavae. Body covered with five thin plates: A cephalic plate, a scapular plate (segmental plate I) which bears two long cirrophores with the primary clavae and cirri A, two other plates (segmental plates II and III), and the caudal plate (segmental plate IV). Median cirrus, internal and external cirri, with the secondary and tertiary clavae, located on the cephalic plate. Stylet supports absent. Legs non digitate, lacking true telescopy. Three claws on all legs attached to the tarsus with a dorsal basal membrane. Claws of different length: two longer, on the middle of the tarsus, and a short lateral one. A very short and thin dorsal bristle on the two medial claws. Sense organs on every leg. Cirrus E with a coarse accordion-shaped articulation.”
Citations:
Bello, G. & Grimaldi de Zio, S. (1998) Phylogeny of the genera of the Stygarctidae and related families (Tardigrada: Heterotardigrada). Zoologischer Anzeiger, 237: 171–183.
de Zio Grimaldi, S., Gallo D`Addabbo, M. & De Lucia Morone, M.R. (1992) Neoarctus primigenius n. g., n. sp., a new Stygarctidae of the Tyrrhenian Sea (Tardigrada, Arthrotardigrada). Bollettino di Zoologia, 59, 309–313.
Fontoura, P., Bartels, P.J., Jørgensen, A., Kristensen, R.M. & Hansen, J.G. (2017) A dichotomous key to the genera of the marine Heterotardigrades (Tardigrada). Zootaxa, 4294, 1–45.
